Kołomyjka [kɔwɔˈmɨi̯ka] is a village in the administrative district of Gmina Rutki, within Zambrów County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 4 kilometres (2 mi) west of Rutki-Kossaki, 15 km (9 mi) north-east of Zambrów, and 53 km (33 mi) west of the regional capital Białystok.